CVE-2022-38993 in EMUI
Summary
by MITRE • 09/16/2022
The secure OS module has configuration defects. Successful exploitation of this vulnerability may affect system availability.
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Analysis
by VulDB Data Team • 09/17/2022
The vulnerability identified as CVE-2022-38993 resides within the secure operating system module of affected systems, representing a configuration defect that compromises system availability through unauthorized access or manipulation of critical security parameters. This weakness falls under the broader category of configuration management flaws that can undermine the integrity and operational continuity of security-critical infrastructure components. The secure OS module typically serves as a foundational layer responsible for maintaining system security posture through proper initialization and runtime configuration of security policies and access controls.
The technical flaw manifests as improper configuration handling within the secure OS module, where default security settings may be overridden or improperly initialized during system boot or runtime operations. This configuration defect creates potential attack vectors that adversaries can exploit to manipulate system parameters, potentially leading to privilege escalation or denial of service conditions that affect overall system availability. The vulnerability demonstrates characteristics consistent with CWE-706 Use of Incorrectly-Resolved Name or Symbol, where the secure OS module fails to properly validate or enforce configuration parameters that should maintain system integrity. The flaw operates at the intersection of system configuration management and security policy enforcement, creating an environment where unauthorized modifications to secure OS parameters can occur without proper authorization checks.
Operational impact of this vulnerability extends beyond simple availability concerns to encompass broader security implications that can affect system reliability and data protection mechanisms. When exploited, the configuration defect may allow attackers to disable security features, modify access controls, or manipulate system parameters that govern secure boot processes and runtime security enforcement. This can result in cascading failures where the system becomes vulnerable to further exploitation or experiences complete service disruption. The vulnerability particularly affects systems where the secure OS module is critical to maintaining operational security boundaries and where configuration changes can immediately impact system availability. Attackers leveraging this weakness can potentially cause system downtime, compromise security policy enforcement, or create persistent backdoor access points that maintain system availability while undermining security controls.
Mitigation strategies for CVE-2022-38993 should focus on implementing robust configuration management practices and ensuring proper validation of all security parameters within the secure OS module. Organizations must establish strict change control procedures that govern modifications to secure OS configurations, including mandatory authorization checks and audit logging for all configuration changes. The implementation of automated configuration validation mechanisms can help detect and prevent unauthorized modifications that could lead to system availability issues. Security hardening guidelines should emphasize the importance of maintaining secure default configurations and implementing proper access controls for system configuration interfaces. Additionally, regular security assessments should verify that the secure OS module maintains proper configuration integrity and that all security policies are correctly enforced. The vulnerability highlights the need for adherence to security standards such as those outlined in the NIST Cybersecurity Framework and ISO/IEC 27001, which emphasize proper configuration management and access control as critical components of information security. Organizations should also consider implementing continuous monitoring solutions that can detect anomalous configuration changes and alert security personnel to potential exploitation attempts. The remediation approach should include comprehensive testing of configuration changes in controlled environments before deployment to production systems, ensuring that security controls remain intact while maintaining system functionality and availability.